Allen-Bradley 1734-OB8 POINT I/O 8-point – Ready to Ship / Pick Up

Name: Allen-Bradley 1734-OB8 POINT I/O
Brand: Allen-Bradley
SKU: 1734-OB8
Price: 149.99 USD
Availability: InStock

In stock: 1734-OB8 POINT I/O digital output module, 8 × 24V DC sourcing outputs, 0.5 A per point. NJT Automation has 1 unit available in Milwaukee, WI, ready to ship or available for local pickup. Includes a one-year full-function warranty.

Allen-Bradley 1734-OB8 POINT I/O digital output module, 8-point, 24V DC – front view

$149.99USD

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Part Number	1734-OB8
Description	POINT I/O digital output module, 8-point, 24V DC. In stock in used condition, Series B.
Shipping	Ships today UPS Ground included \| Next-Day Air and Worldwide Shipping available at checkout
Pickup	Free local pickup at 2122 N Prospect Ave. Call ahead at (414) 331-5954.
Warranty	1-year full-function warranty provided by NJT Automation. Warranty details Included 1 year, full-function 2 years +15% of product price ($22.50) 3 years +25% of product price ($37.50) View full warranty policy
Returns	90-day free returns. View return policy
Exchange	Send us your defective 1734-OB8 after your purchase for a 10% core credit ($15). We also purchase old or damaged parts outright.

Replacement Options for 1734-OB8

In stock and ready to ship today

Allen-Bradley 1734-OB8S Used - Buy 1734-OB8S replacement | NJT Automation

Allen-Bradley 1734-OB8S Used - alternate view

Allen Bradley 1734-OB8S /B POINT Guard I/O 8 Point Safety Output Module 1734OB8S

$149.99 USD

Condition: Used

Series B

1 in stock

View Product

Availability

Similar Match Available

A similar unit is in stock and ready to ship once you confirm the condition you need.

Variants

Part NumberConditionSeriesQtyPrice

1734-OB8S /BUsedSeries B1$149.99 USD

1734-OB8RefurbishedSeries needed—Request Quote

Repairs

1734-OB8 Mail-In Repair Service

Part Number Decoder

POINT I/O digital output module

1734OB88

POINT I/O digital output module, 8 × 24V DC sourcing outputs, 0.5 A per point.

1734: BulletinPOINT I/O: Allen-Bradley's 12 mm-wide modular I/O with removable terminal bases, up to 63 modules per adapter on EtherNet/IP, DeviceNet, ControlNet or PROFIBUS.
OB8: Module typeDigital output module: 8 × 24V DC sourcing outputs, 0.5 A per point.
8: Point count8-point module.
24V DC: Voltage / signal type24V DC field side.

Decoded from the Rockwell Automation catalog-number structure. Series and firmware revision are printed on the product label, not encoded here.

Physical Data

Weight and DimensionsWeight0.07 lb (0.03 kg)H × W × D3.1 × 0.5 × 2.2 in. (77.5 × 12.1 × 56.6 mm)

Weight	0.03 kg (0.07 lb) Typical unit weight
Dimensions (H × W × D)	77.5 × 12.1 × 56.6 mm (3.1 × 0.5 × 2.2 in.) Single-width module without terminal base; 28…43 g
Shipping Weight	0.48 kg (1.07 lb) Estimated: unit weight plus box and packing material; bills as 2 lb
Shipping Box (L × W × H)	12 × 10 × 8 in. (305 × 254 × 203 mm) Smallest standard box fitting the product with 3 in. cushioning per side

Product weight and dimensions are typical manufacturer-published values and may differ by series or option. Shipping box and weight are estimates for freight planning; the packed unit may ship in a different box.

Datasheet

Datasheet available for download

Generated from product specifications; not an official Allen-Bradley datasheet. For an official datasheet, contact Allen-Bradley or an authorized distributor.

Allen Bradley Information

Technical Description

POINT I/O digital output module, 8 × 24V DC sourcing outputs, 0.5 A per point.

Lifecycle: Active. Verify current status with the manufacturer.

Alternate Part Numbers

1734OB8, 1734 0B8

Can the 1734-OB8 be repaired?

Yes. NJT Automation offers mail-in repair for the 1734-OB8, including diagnostic evaluation, component-level repair, and functional testing.

NJT Managed Repair

One vendor. One warranty. NJT manages the entire process.

1-year full-function NJT warranty, with 2- and 3-year options available
Rush service available for production-critical repairs
No evaluation or diagnostic charges
No repair, no charge
"Unrepairable" is not an option
Pre-paid UPS shipping label provided for sending your unit in
$650 minimum repair charge, shipping included both ways

Get an NJT Repair Quote

Looking for another option? For lower-cost repairs or if you prefer to work directly with an independent repair specialist, compare bids through RepairMode. RepairMode providers operate independently and set their own pricing and warranty terms.

Find a repair specialiston RepairMode.com ↗

Common 1734-OB8 failures

Failure patterns we regularly see on POINT I/O digital output module hardware like the 1734-OB8:

Point stuck ON or OFF after a field short or overvoltage
Output driver shorted ON after an inductive kick (OB / OV modules)
Relay contacts welded on OW modules
POINTBus connector wear causing module faults

Repair or replace?

ReplaceI/O cards like the POINT I/O digital output module are the easiest modules to swap: same slot, same wiring, no setup. Replace the 1734-OB8 when a channel is dead and the machine needs to run now. Stick with the exact 1734-OB8. The suffix sets the 8-point density and 24V DC rating, so a near match is a different unit. We stock the 1734-OB8. Order by 5:00 PM Central for same-day shipping.

RepairA single blown point on the 1734-OB8 is a component-level repair (a driver, input channel or on-board fuse), so repair pays when replacements are scarce or you have several cards with a few bad channels each. Most 1734-OB8 units reach our bench with one of two symptoms: “Point stuck ON or OFF after a field short or overvoltage” or “Output driver shorted ON after an inductive kick”. Repaired 1734-OB8 units are function-tested before return and carry a 1-year warranty.

Request a Repair Quote

Text photos of the faulty unit and the symptoms to (414) 331-5954.

Start Your Repair Today

Related services:PLC Repair All Repair Services

All product photos were taken by NJT Automation. Test videos originated from either NJT Automation internally or from repair technicians within our network.

Still have questions?

Find answers to shipping, warranties, repairs, and more.

Frequently Asked Questions

What is the 1734-OB8?

The Allen-Bradley 1734-OB8 is a POINT I/O digital output module, 8 × 24V DC sourcing outputs, 0.5 A per point.

What condition is the 1734-OB8 in?

NJT Automation currently has 1 unit of the 1734-OB8 in stock in used condition (Series B). Each listing states its own condition and series. Clean used pull with full functionality. Minimal cosmetic wear and backed by our 1-year warranty.

How much does the 1734-OB8 cost?

At NJT Automation, 4 1734-OB8 POINT I/O digital output modules have sold in 2024 for $130 – $250, with a median of $145. Right now 1 unit is in stock at $150, depending on condition and series.

When does this part ship?

NJT Automation has 1 unit of the 1734-OB8 POINT I/O digital output module on the shelf in Milwaukee, WI, priced from $149.99. Orders placed before 5:00 PM Central on business days ship the same day; orders placed after the cutoff ship the next business day.

Can you ship this next-day air?

Yes. UPS Next Day Air is available at checkout for the 1734-OB8 POINT I/O digital output module. Place your order before 5:00 PM Central on a business day and your in-stock item ships the same day for next-business-day delivery.

Can I pick this item up locally?

Yes. Free local pickup is available for the 1 in-stock 1734-OB8 unit at NJT Automation, 2122 N Prospect Ave, Milwaukee, WI, during business hours. Contact us to arrange a pickup time.

How many I/O points does the 1734-OB8 have?

8-point module.